Tuna-Stuffed Tomatoes: A classic Italian beach eat, tomates rellenos, or stuffed tomatoes, with tuna is a protein-packed and low-carb snack to enjoy at the beach. For the healthiest version that doesn't lose any flavor, try this light tuna salad recipe. Core the tomatoes before you leave home and spoon in the tuna salad before you bite. Source: Flickr User From Argentina With Love